get_trange
AI agents call get_trange to retrieve information from AlphaVantage MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'get_' prefix and sibling tools all appear to be technical indicators and data retrieval functions from the AlphaVantage API. TRANGE likely refers to True Range, a technical indicator commonly used in stock analysis. This tool retrieves calculated financial data with no side effects. Even if misused by an AI agent, it only queries public financial data, presenting minimal risk.
From the tool's definition Tool name 'get_trange' is a getter function with 'get_' prefix, consistent with sibling tools (get_ad, get_adosc, get_adx, etc.) which all retrieve financial data and indicators. The AlphaVantage context indicates data retrieval from financial APIs.
Attacks that exploit this kind of access
get_trange. It is categorised as a Read tool in the AlphaVantage MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AlphaVantage MCP Server MCP server in PolicyLayer and add a rule for get_trange: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches AlphaVantage MCP Server. Nothing to install.
get_trange is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_trange rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_trange. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_trange is provided by the AlphaVantage MCP Server MCP server (lifejwang11/alphavantage-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →